source: trunk/gsdl/src/colservr/source.h@ 308

/**********************************************************************
 *
 * source.h -- 
 * Copyright (C) 1999  The New Zealand Digital Library Project
 *
 * PUT COPYRIGHT NOTICE HERE
 *
 * $Id: source.h 271 1999-06-16 02:00:34Z sjboddie $
 *
 *********************************************************************/


#ifndef SOURCE_H
#define SOURCE_H

#include "gsdlconf.h"
#include "text_t.h"
#include "comtypes.h"


class sourceclass {
public:
  sourceclass ();
  virtual ~sourceclass ();

  // configure should be called once for each configuration line
  virtual void configure (const text_t &key, const text_tarray &cfgline);

  // init should be called after all the configuration is done but
  // before any other methods are called
  virtual bool init (ostream &logout);

  // translate_OID translates OIDs using ".pr", ."fc" etc.
  virtual bool translate_OID (const text_t &OIDin, text_t &OIDout, 
                  comerror_t &err, ostream &logout);

  // get_metadata fills out the metadata if possible, if it is not responsable
  // for the given OID then it will return false.
  virtual bool get_metadata (const text_t &requestParams, const text_t &refParams, 
                 bool getParents, const text_tarray &fields, const text_t &OID,
                 MetadataInfo_tarray &metadata, comerror_t &err, ostream &logout);

  virtual bool get_document (const text_t &OID, text_t &doc, 
                 comerror_t &err, ostream &logout);
};


// The sourceptr class does not 'own' the source. The 
// source should be deleted by the code which created it.
class sourceptr {
public:
  sourceclass *s;

  sourceptr () {s=NULL;}
};

typedef vector<sourceptr> sourceptrlist;

// contains a list of sources
class sourcelistclass {
protected:
  sourceptrlist sourceptrs;

public:
  // type support for sourcelistclass
  typedef sourceptrlist::iterator iterator;
  typedef sourceptrlist::const_iterator const_iterator;
  typedef sourceptrlist::reference reference;
  typedef sourceptrlist::const_reference const_reference;
  typedef sourceptrlist::size_type size_type;

  typedef sourceptrlist::difference_type difference_type;
  typedef sourceptrlist::const_reverse_iterator const_reverse_iterator;
  typedef sourceptrlist::reverse_iterator reverse_iterator;
  
  // basic container support
  iterator begin () {return sourceptrs.begin();}
  const_iterator begin () const {return sourceptrs.begin();}
  iterator end () {return sourceptrs.end();}
  const_iterator end () const {return sourceptrs.end();}

  void erase(iterator pos) {sourceptrs.erase(pos);}
  void erase(iterator first, iterator last) {sourceptrs.erase(first, last);}
  sourcelistclass &operator=(const sourcelistclass &x) 
    {sourceptrs=x.sourceptrs;return *this;}

  bool empty () const {return sourceptrs.empty();}
  size_type size() const {return sourceptrs.size();}


  // added functionality
  void clear () {sourceptrs.erase(sourceptrs.begin(),sourceptrs.end());}

  // thesource remains the property of the calling code but
  // should not be deleted until it is removed from this list.
  void addsource (sourceclass *thesource);
};



#endif